[NEW SERIES.] bilities but also be- instruments are … sented a number tempted. PROFESSOR _A. GRAHAM BELL'S TELEPHONE.—Fig. 1. of telephones con- In the telephone nected together, which we illustrat- 2and4. A, Fig 2, is a plate of iron or steel which is| each one, for the sta- ed recently in- fastened to the sounding box, D, Fig. 4 (see page 200). To…
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